Explain variable declaration this way

Question

public class PassByReference {
    int oneTozero (int arg[]) {
    }
}

I've never seen a variable declared this way. Can someone explain? Thanks

class = `PassByReference` method = `oneTozero` arguments = `int arg[]` — Scary Wombat, Nov 07 '18 at 06:33
To clarify: I assume your question is about the method parameter -- the `int arg[]` part? — ruakh, Nov 07 '18 at 06:38

score 1 · Answer 1 · answered Nov 07 '18 at 06:36

1

It's not a variable, you have a class called PassByReference with method type integer oneTozero and an integer array as an argument to that method arg[].

answered Nov 07 '18 at 06:36

Ashish Yadav

1,901
2
17
23

score 1 · Answer 2 · answered Nov 07 '18 at 06:41

1

If the confusion is about int arg[] vs int[] arg, that is an alternative syntax to specify arrays for people coming from C.

It means the same thing.

And, yes, it's confusing, especially if you mix the two int[] twoDim[].

answered Nov 07 '18 at 06:41

Thilo

257,207
101
511
656

score 0 · Answer 3 · answered Nov 07 '18 at 06:38

0

int oneTozero (int arg[]) {} describe the method. int arg[] is an parameter. It is an array of int. In Java there are at least 3 ways to describe parameter as an array and all of them are equal:

int array[]
int[] array
int... array

answered Nov 07 '18 at 06:38

uli

671
6
15

score 0 · Answer 4 · answered Nov 07 '18 at 06:39

0

public class PassByReference {
    int oneTozero (int arg[]) {
    }
}

New class PassByReference with public visibility is been declared. This class contains oneTozero method with default visibility and array of integer as argument.

answered Nov 07 '18 at 06:39

Oleg Cherednik

17,377
4
21
35

Explain variable declaration this way

4 Answers4